function fadeIn(objId,opacity) {
	if (document.getElementById) {
		obj = document.getElementById(objId);
			if (opacity <= 100) {
				setOpacity(obj, opacity);
				opacity += 10;
				window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 20);
			}
	}
}

function fadeOut(objId,opacity) {
	if (document.getElementById) {
		obj = document.getElementById(objId);
		if (opacity >= 0) {
			setOpacity(obj, opacity);
			opacity -= 10;
			window.setTimeout("fadeOut('"+objId+"',"+opacity+")", 200);
		}
	}
}

function setOpacity(obj, opacity) {
	opacity = (opacity == 100)?99.999:opacity;
	// IE/Win
	obj.style.filter = "alpha(opacity:"+opacity+")";
	// Safari<1.2, Konqueror
	obj.style.KHTMLOpacity = opacity/100;
	// Older Mozilla and Firefox
	obj.style.MozOpacity = opacity/100;
	// Safari 1.2, newer Firefox and Mozilla, CSS3
	obj.style.opacity = opacity/100;
}			


function setimage(imagesrc){
	imageId = 'mainimage';
	image = document.getElementById(imageId);	
	var mainimage= document.getElementById('mainimage');
	mainimage.src = imagesrc;			
			
	var imagelink = document.getElementById('imagelink');
	imagelink.href = imagesrc;

	setOpacity(image , 0)
	fadeIn(imageId,0);								

}


function setNextImage(){	
	imageId = 'mainimage';
	image = document.getElementById(imageId);	
	if(image !=null){
		if (imageNumber< imageArrayLength){
			imageNumber= imageNumber+1;
		}			
		else{
			imageNumber= 0;
		}	

		while (imageArray[imageNumber] =="") {
			if (imageNumber< imageArrayLength){
				imageNumber= imageNumber+1;
			}			
			else{
				imageNumber= 0;
			}
		}

		setimage(imageArray[imageNumber]);		
		setTimeout("setNextImage()", 5000);	
	}	
}